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Designed for more clarity

Do you want to hear the details you've been missing in your car's sound system? You'll enjoy exceptional clarity from Infinity's Reference X Series REF-6500cx 6-3/4" component speaker system. The package includes two 6-3/4" woofers, two 3/4" tweeters, and two external crossovers, along with mounting hardware and grilles.

Textile tweeters

Infinity uses 3/4" textile dome tweeters that give you amazing levels of detail without sounding harsh. Mount these tweeters in the right spot in your vehicle, and you'll hear a new world of sound as instruments and vocals become more natural and clearly defined. Infinity includes hardware for surface- or flush-mounting the tweeters, plus Starfish brackets that help you install the tweeters in many factory tweeter openings.

Why install component speakers?

A component speaker system gives you the best possible performance from your car audio system. A system consists of separate woofers, tweeters, and crossovers, each designed to cover one specific range of frequencies. As separate components, the woofer can move freely to deliver more powerful performance, while the tweeter can be custom-mounted in a better spot up closer to your ears, revealing a whole new world of detail. Separate crossovers are far superior to the simple filters wired into full-range speakers, so the components work together for smoother, more focused sound.

Product Research

Woofers

Plus One+ Cones: Each woofer uses a cone significantly larger
than other speakers of the same size. This is accomplished by using a new basket
design and hi-roll surround. The Plus One+ design offers greater bass output and
a significant increase in efficiency.

Hi-roll Rubber Surrounds: The hi-roll rubber surrounds allow
the woofers a greater range of movement, resulting in longer X-max and more bass
output.

Mounting: Without an adapter, the 6500cx woofers fit standard
6-3/4" applications. Given their required cutout, they will also fit standard
3-hole 6-1/2" and 4-hole 6-1/2" applications without an adapter, but
new screw holes must be drilled. Using the included adapter brackets they can be
mounted in a wide variety of 6-1/2" and 6-3/4" applications, without any
modification.

Tweeters

Material: Each tweeter features a 3/4" edge-driven textile
dome for smooth, accurate highs.

Mounting: The I-Mount tweeter mounting system and Starfish
mounting brackets give you several different ways to mount the tweeters:

I-Mount Mounting System: The
tweeters can be surface- or flush-mounted with Infinity's
innovative I-Mount system:

Surface Mount: Surface mounting
the tweeters involves screwing the surface-mount cup
to the mounting location, then inserting and locking
the tweeter into the cup.

Flush Mount: Flush mounting is
made easy through the use of the threaded flush-mount
housing and plastic locking nut. Once a cutout is made,
the tweeter is installed in the flush-mount adapter,
then into the flush mount housing and inserted into
the hole. The large plastic locking nut is threaded
onto the adapter (from behind the mounting surface)
to hold the complete assembly securely in place. When
flush mounted, the tweeters may be angled for optimum
response and imaging.

Starfish Mounting Brackets: The Starfish
mounting brackets allow the tweeters to be installed in factory
locations behind the grilles:

Bottom Mount: Once the Starfish
bracket is trimmed, it is secured to the underside of
the grille panel. The tweeter must be inserted into
the bracket and locked into place before the bracket
is mounted.

Surface Mount: Once the Starfish
bracket is trimmed, it is screwed to the top of the
mounting surface behind the grille panel. Then, the
tweeter is inserted into the bracket and locked into
place.

Flush Mount: There are two sets
of tabs to flush mount the tweeter in the Starfish
bracket, yielding different mounting dimensions. The
upper tabs mount the tweeter completely below the
opening and are glued in place. The lower mounting
tabs are screwed in place and result in a mounting
height just under a half inch. Once the bracket is
mounted, the tweeter is inserted into the bracket
and locked into place.

Mounting Dimensions:

I-Mount Surface Mount

I-Mount Flush Mount

Starfish Bottom Mount

Starfish Surface Mount

Starfish Flush Mount

Starfish Flush Mount (below mounting surface)

Mounting
Height

0.90"

0.672"

0.0"

0.885"

0.41"

0.065"

Depth

0.492" (screw
depth)

0.808"

0.944"

0.492" (screw
depth)

0.475"

0.88"

Frame
Diameter

1.488"

1.845"

2.8"

2.44"

2.625"

3.04"

Cutout Diameter

N/A

1.583"

N/A

N/A

1.51"

3.625"

Crossovers

Selectable Tweeter Output Level: Each 2-way crossover allows
you to select the tweeter output level according to system requirements and
personal preference; the tweeter level can be set to +3 dB or 0 dB.

Connections: The crossover inputs and outputs are screw
terminals; they will accommodate bare wire or spade connectors up to 0.315"
wide. There are four mounting holes in each crossover.

Dimensions:

Width: 3.935"

Height: 1.209"

Depth: 3.171"

Specifications

True Four Ohm Impedance Technology: The speaker's 3-ohm
impedance combined with the impedance of your speaker wire provides a true
4-ohm load to your connected head unit or amplifier.

Power Handling: Although Infinity rates the 6500cx speakers at 90 watts RMS (continuous average), they also recommend amplifiers with a
power rating from 5 to 200 watts RMS.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to
find elsewhere. That's because we have our own in-house Product Research
team. They verify what’s in the box, check the owner's manual, and record
dimensions, features and specs. We stay on top of new products and technologies
to help people make informed choices.

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Review Guidelines for more information. We reserve the right (but are not
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Great Speakers

I bought these speakers to switch out my other 6x9 infinity's and what a difference. Much better detail and sound stage to go with the sub I have. These are a must have if you enjoy listening to music. Thank you Crutchfield

Review Update

Update to my previous review. Lived with these speaker powered off the stock HU for a few weeks and was impressed with how they sounded. Then added the Alpine Power Pack amp to drive them. I basically doubled the power and all I can say is wow! These speaker sound amazing with some extra power. For the price and all the adapters included, this is a great choice. Will not disappoint.

Great Speakers

These speakers are great! I have a JL amp running 150 Watts RMS to a pair of these speakers and the sound is amazing. In addition these speakers come with so many mounting pieces, you really have a lot of options. If you've ever tried to put a tweeter right where you wanted it, you will know what i'm talking about. I have a '09 Tacoma and these speakers fit in the front door nicely.

Infinity Reference X REF-6500cx

Written By s, Bergen County, NJ on Monday, December 16, 2013

Put two sets of these in a 09 F150 Crew. Powering them off stock HU and they sound great. Did require speaker adapters and drilling into sail panel to install tweeters. Well worth the money. Big difference over stock speakers. With an amp I'm sure these speakers will sound even better.

Superb Value

I recently put these speakers in my 1998 Toyota Tacoma. After breaking them in a bit I must say that they are superb, especially given the reasonable price. There is very little discernible difference from my friends $500 dollar component speakers. Trebles and Mids are brilliant, and the base is sufficient. Overall it is very balanced, but to get the umph you need to fill certain genres you may need to add a sub. I was hesitant about the smaller tweeter at first, but it does the job well. This is my first Infinity speaker, and I am very satisfied. I did put a sheet of Dynamat extreme behind the speaker, and it does make a noticeable difference. It is worth the $25 dollars to get the speaker kit.

These speakers are extremely universal! Included in the box are an astounding number of options for both custom and stock mountings. I have never seen this in a component system before, and it was a pleasant surprise. Lots of hardware was also provided.

A note of warning though- you may want to get a set of female spade connectors to connect to the tweeters. I just used a butt end clip, but had to cut off a pair of nice spade connectors.

As always, Crutchfield was a pleasant experience. This is the forth time I have ordered from them, and have yet to encounter any issues. Delivery is always prompt, free, and packaged well. I will be coming back here for all my future needs.

Good speakers but incomplete kit

It all ended okay, but the kit does not come with interconnect wires between crossovers and drivers. Crutchfield did not notify me of this at the time of purchase (by telephone). When I phoned and complained Crutchfield shipped me a set (specifically; female spade lugs), but this caused me a week delay in getting my car back on the road.

Awesome upgrade for stock radios

Written By John, San Diego, CA on Saturday, January 12, 2013

Very nice set of speakers. I installed these in my 2008 Astra and they fit perfectly. The tweeters fit perfectly in place of my stock ones and the bracket that Infinity supplied for the woofers fit my stock screw holes exactly. The improvement in the clarity of the sound is what really stands out in these speakers, I listen to a full range of music types and there nothing I've thrown at these tweeters that has caused them to crackle or become flat. You can hear everyone of the different high notes. As for the woofers they are a massive improvement over my stock component woofers, they really make the most of the meager bass output of my stock HU. With that being said I had also ordered an amp to connect to these speakers and decided to return it upon hearing how much louder and fuller these speakers make my stock radio. I highly suggest you buy the 10"x10" sheets of dynamat to surround your woofers because if your doors don't rattle before you install these they sure will after.

I matched these with the Reference 4000 series 4" speakers in my rear doors (Opel decided to put the larger speakers up front?) they play very well off of each other. Overall extremely satisfied

Pros:Huge improvement over stock speakers
These will make the most out of the small amount of power that a stock HU puts out, for those of us who don't feel the need to install an amp

Cons:Like most automotive work there was some swearing and cut fingers, but the sound improvements are worth it
No extras of any of the installation hardware, not necessarily a con, just something to remember so you don't end up crazy gluing your tweeters together like this guy.

More Than What I'd Expected!!

I installed these bad boys in my BMW 325ci and they sound amazing. The installation was simple with the mounting brackets and Crutchfield was very helping with assisting me with any help that I needed. Buy these components you won't regret it!!!!

great speakers

i replaced my factory speakers in both the doors and behind the seat with these and they sound amazing even with my factory head unit. i put them into a 6x9 opening and they fit with just slight trimming which was because of the tweeter going into the top part of the adapter bracket they supply.

Pros:they fit well with the supplied bracket with a small bit of trimming. they sound great with my factory head unit. the deal i got on them was great.

Cons:i didnt care for the way the tweeter was mounted. they did offer two options and i liked how one of them was movable so you could aim the tweeter however if you were to surface mount these they wouldnt look good in my opinion. that being said i mounted them behind the door panel so it isnt seen and isnt a huge deal

Brad

Written By Brad, san diego on Tuesday, December 11, 2012

I put these in my 2008 suburban and powered them with a 800 wat Kenwood amp. They are by far the best sounding speakers I have had in any of my vehicles. The bass is deep and can be felt. The highs are clean and sharp. I found that I no longer have to increase the volume to hear all the details of the music. These things sound great at any volume level. They are a great value for the price.

Great Affordable Speakers

These speakers sound great and were easy to install. Only basic tools and moderate handyman skills needed. My only complaint is that neither the Crutchfield nor the Infinity instructions and pictures were very clear so it took me awhile to figure out how to attach the speakers with the brackets and ensure they would not produce a vibrating sound. Also, I did not change out my factory tweeters because they did not include a wiring harness for the tweeters like they did for the 6 3/4 speakers. I do not want to add tweeters anywhere else since there is factory wiring for the tweeters but I also don't want to have to cut the wiring harness off the old tweeters since they are still good. The wiring harness they did include for the 6 3/4" speakers worked great except the smaller connector does not fit snuggly so you have to bend the contacts on the connector to give it a tight connection.